19386938760 has 128 divisors (see below), whose sum is σ = 66498969600. Its totient is φ = 4429336320.

The previous prime is 19386938731. The next prime is 19386938761. The reversal of 19386938760 is 6783968391.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 19386938694 and 19386938703.

It is not an unprimeable number, because it can be changed into a prime (19386938761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2818125 + ... + 2824995.

It is an arithmetic number, because the mean of its divisors is an integer number (519523200).

Almost surely, 2^19386938760 is an apocalyptic number.

19386938760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19386938760 is an abundant number, since it is smaller than the sum of its proper divisors (47112030840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19386938760 is a wasteful number, since it uses less digits than its factorization.

19386938760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251 (or 10247 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 19386938760 in words is "nineteen billion, three hundred eighty-six million, nine hundred thirty-eight thousand, seven hundred sixty".